Portion of full-face mask



FIG. 1 is an isometric view of a full face mask according to a firstembodiment that has a low-profile connector;

FIG. 2 is an isometric view of a full face mask according to a secondembodiment that has a high profile connector;

FIG. 3 is a right side view of a portion of a full-face mask accordingto the second embodiment;

FIG. 4 is a front view of a portion of a full-face mask according to thesecond embodiment;

FIG. 5 is a rear view of a portion of a full-face mask according to thesecond embodiment;

FIG. 6 is a bottom view of a portion of a full-face mask according tothe second embodiment;

FIG. 7 is an isometric view of a portion of a full-face mask accordingto the second embodiment;

FIG. 8 is a left side view of a portion of a full-face mask according tothe second embodiment;

FIG. 9 is a top view of a portion of a full-face mask according to thesecond embodiment; and,

FIG. 10 is an isometric view of a portion of a full-face mask accordingto a third embodiment.

Where included, broken lines showing environment or structure are forillustrative purposes only and form no part of the claimed design. Thedotted lines indicate the border between claimed and unclaimed subjectmatter and form no part of the claimed design.

The ornamental design for a portion of a full-face mask, as shown anddescribed.